Faucet



1935- A. E. TOMLINSON 2,017,739

FAUCET Filed March 10, 4 1932 azfwz 7 2. 1%

ATTO 5Q INVENTORQ Patented Oct. 15, 1935 7 Claims.

This invention relates to a faucet which is particularly adapted to usewith coffee urns of the type used in restaurants, although it is notlimited to that use and may be employed, either with or withoutmodification of the form here shown, in situations where considerablyhigher pressures are to be dealt with. The necessary characteristics ofa valve of this sort are that it be quickly and positively changed fromfull closed to full open position and vice versa by a short swing of thehandle, that it be perfect against leakage, that the closing will not beimpaired by various hard deposits thereon (such, for example, as limewhen the valve is used on a hot water urn), that the parts which areparticularly subject to Wear and injury be-readily replaceable, that themoving parts of the valve be largely self cleaning and that the valveconstruction be such as to make assembly in anything but the properarrangement physically impossible. Among the other purposes of theinvention are the provision of a valve of this character in which thevalve will not become locked no matter how tightly seated, but which onthe other hand the seating will be accomplished even if little force isused in the closing motion and in which excessively tight closing willnot damage the seat or rubber washer. Another purpose is to provide avalve in which the liquid flows directly through the center of the valvechamber and vertically downward and in which there is only a very shortvertical spout, of large diameter relative to its length, below theclosure. My invention is directed to the accomplishment of thesepurposes and provides means not hitherto known whereby theyareaccomplished more perfectly than has hitherto been the case. To theaccomplishment of the foregoing and related ends, said invention, then,consists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying my invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of my invention may be used.

In said annexed drawing Fig. 1 is a vertical central section through thevalve; Fig. 2 is .a horizontal section as indicated by line 22 Fig. 1;

casing is internally threaded at the bottom to receive a spout 4 havinga protruding rim or flange 5 near its top, this rim being engaged frombeneath by a hollow plug 6 threaded into the bottom of the casing I andmaintaining the spout 4 5 in position. The spout is stepped at the topto receive .a resilient washer l which bears, as shown, with the outerportion of its upper face against a flange 8 in the casing I and whichtakes on the inner part of the upper surface the lower edge of 10 adownturned circumferential flange 9 on the closure disc it. The inneredge of the flange 8' defines an opening through whichthe disc Illpasses freely and the flange also forms the bottom of a valve chamber Il. 15

Alarge central passage, internally threaded as at it, extends up throughthe casing i from the chamber l l and a correspondingly threaded plug I3is threaded into this passage by a multiple thread of high angle. Thisplug is internally cen- 20 trally chambered on various diameters toreceive respectively the disc I0, a compression spring M,

a stem l5 and .a slotted head H3. These various openings being perfectlyclear in Fig. 1 from the reference characters applied to the elements 25which occupy them, are not themselves given reference characters. 7

The plug i3 extends upwardly on a reduced diameter by two opposedsegmental members I1. The head it of the stem [5 passes down between 30these. The stem I5 is threaded at its lower end into the disc iii .andbymeans of the head I6 prevents the disc from being pushed out of the plugl3 by the spring it, while allowing reciprocation therein. The disc itis conveniently 35 formed with a hollow stud i8 and is held from beneathby a cap nut l9. ,7 V

A bonnet 2i! is threaded over the top of the casing i. This bonnetincludes a space 2! in which the upper end of the plug i 3 isreceivedonits up- 40 ward movement and another space 22 to allow upward movementof the extensions ll. A packing of conventional type, shown at 2 3, isplaced between the bonnet and the casing l. A valve stem 9. passesthrough the upper part of the bonnet. 45 T s. m i pr d. fr re c ti n, bmeans'of a flange 25, packed as at 26 below and packed above as at 2?,the upper packing being preferably of the thread type and compressed bya gland 28 threaded to the valve stem and conveniently locked thereonbya nut 29. 'Above the threaded portion the valve stem is corrugated asat 30 to take a handle 3|. Below the flange 25 the stem extends downwardin the shape of a tongue 32 slidablyengaging in the extensions Turningthe tongue thus turns the plug l3. As the plug is lifted or lowered bythe screw threads I2, the extensions ll slide along the tongue.

In closed position the plug l3 seats at the bottom on the flange 8, butthe spring M holds the flange 9 of the disc l0 against the packingring 1. Since the disc Hi can be turned up or down on the stem [5 andlocked by the nut 19, the compression of the spring Hi can be adjusted.In case the washer 1 needs to be removed, anyone of sufficientintelligence to use a wrench or pair of pliers can take out the plug 6thereby removing the spout 4 and can replace the washer. The disc II)will be prevented from coming out at this time by the head l6 and theadjustment of the spring [4 will not be changed. After the washer isreplaced it is impossible to reassemble the spout in any but the correctway, since the plug 6 is only threaded. at the upper end, inside ofwhich the flange 5 fits. It will be noted in Fig. 1 that the head it isabove the bottom of the space in which it works. Thus, irrespective ofthe seating of the body IS, the disc ill is always independently seatedby spring pressure. Liquid working up past the threads l2 cannot escapefrom the valve, even though the valve be used in a situation where thepressure is considerably greater than in a coffee urn. The reason forthis is that the bonnet is packed at 23 and the portion of the stem 24which passes through the bonnet is smooth and is packed on each side bypacking which revolves with the stern. It will be noted that when thegland 28 is locked by the nut 29 both of these members turn with, andnot on, the stem.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the followingclaims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:

1. In a faucet, in combination, a plug for closing the faucet adaptedfor screw lift, a stem movable in rotation only for actuating said plug,an axially slidable connection between said stem and said plug, a bonnetwherein said stem is mounted, said mounting comprising an inwardlydirected flange in the bonnet and an outwardly directed flange on thestem therebelow, and a packing washer between said flanges, and meansfor holding said stem flange up against said Washer and said washeragainst said inwardly directed'flange, said means comprising a glandconstrained to rotate with said stem.

2. In a faucet, in combination, a plug operable by screw action, amovable element carried by said plug, a spring between said plug andsaid movable element whereby said movable element is urged in advance ofsaid plug, a seat element adapted to co-operate with said movableelement, a washer on said seat element carried by a removable section ofsaid faucet, said plug having means for isolating said washer from thefluid in said faucet when it is desired to remove said washer.

3. In a faucet, in combination, a valve chamber open to a supply ofliquid, a screw plug entering said chamber, a closure member on thelower end of said plug and of less diameter than the plug, movablemounting means of said 010- 5 sure member on said plug permittinglimited independent movement of the closure member, said mountingincluding resilient means urging said closure member in advance of saidplug, an annular valve face on the lower end of said plug, 10 seatingmeans for said closure member comprising a spout secured below said plugand below the valve chamber, a flange and a washer seat on the upper endof said spout, a washer on said seat adapted to receive said closuremember to 15 shut said chamber off from said spout, means for removablysecuring said spout to the faucet casing, and an internally directedflange at the lower end of said valve chamber, the upper face of saidflange constituting a valve seat adapted 20 to be engaged by the lowerface of said plug.

4. In a faucet having a valve chamber, a plug entering said chamber andaxially movable in the faucet body and a closure member carried on thelower end of said plug, seating means for 26 said member comprising aspout secured below said plug and below the valve chamber, said spouthaving a flange, means for securing said spout to the faucet casingcomprising a hollow plug internally stepped at its upper end to re- 3,0ceive said flange and engageable at its upper end with said casing, thelower end of said hollow plug being incapable of engagement with saidcasing.

5. In a faucet having a valve chamber, a screw 35. plug entering saidchamber and threaded in the faucet body and a closure member carried onthe lower end of said plug, seating means for said member comprising aspout secured below said plug and below the valve chamber, a flange anda 40.. washer seat on the upper end of said spout, a washer on saidseat, means for securing said spout to the faucet casing comprising ahollow plug internally stepped at its upper end to receive said flangeand engageable at its upper end 45. with said casing, the lower end ofsaid hollow plug being incapable of engagement with said casing.

6. In a faucet having a casing and a spout, two closure means adapted tobe closed by the same 50 axial movement, a seat on said casing for oneof said means and a seat on the spout for the other, means yieldablyurging one of said closure means in advance of the other to seat uponsaid spout. 55

7. In a faucet having a casing and a spout, two closure means adapted tobe closed by the same axial movement, a seat on said casing for one ofsaid means and a seat on the spout for the other, yiel-dable meansurging one of said 60.- closure means in advance of the other to seatupon said spout, means securing said spout to said casing, and a washerbetween said spout and casing also constituting a seat on said spout.

ALFRED E. 'IOMLINSON.

